Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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Improved Detection of Helicobacter pylori Infection and Premalignant Gastric Mucosa Using "Site Specific Biopsy": a Randomized Control Clinical Trial

  • Tongtawee, Taweesak (Department of Surgery, Institute of Medicine, Suranaree University of Technology) ;
  • Dechsukhum, Chavaboon (Pathological Unit, Institute of Medicine, Suranaree University of Technology) ;
  • Leeanansaksiri, Wilairat (Institute of Science, Suranaree University of Technology) ;
  • Kaewpitoon, Soraya (Family Medicine and Community Medicine, Suranaree University of Technology) ;
  • Kaewpitoon, Natthawut (Parasite Disease Research Unit, Suranaree University of Technology) ;
  • Loyd, Ryan A (Family Medicine and Community Medicine, Suranaree University of Technology) ;
  • Matrakool, Likit (Department of Surgery, Institute of Medicine, Suranaree University of Technology) ;
  • Panpimanmas, Sukij (Department of Surgery, Institute of Medicine, Suranaree University of Technology)
  • Published : 2016.01.11
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Abstract

Background: Helicobacter pylori infection and premalignant gastric mucosa can be reliably identified using conventional narrow band imaging (C-NBI) gastroscopy. The aim of our study was to compare standard biopsy with site specific biopsy for diagnosis of H. pylori infection and premalignant gastric mucosa in daily clinical practice. Materials and Methods: Of a total of 500 patients who underwent gastroscopy for investigation of dyspeptic symptoms, 250 patients underwent site specific biopsy using C-NBI (Group 1) and 250 standard biopsy (Group 2). Sensitivity, specificity, and positive and negative predictive values were assessed. The efficacy of detecting H. pylori associated gastritis and premalignant gastric mucosa according to the updated Sydney classification was also compared. Results: In group 1 the sensitivity, specificity, positive and negative predictive values for predicting H. pylori positivity were 95.4%, 97.3%, 98.8% and 90.0% respectively, compared to 92.9%, 88.6%, 83.2% and 76.1% in group 2. Site specific biopsy was more effective than standard biopsy in terms of both H. pylori infection status and premalignant gastric mucosa detection (P<0.01). Conclusions: Site specific biopsy using C-NBI can improve detection of H. pylori infection and premalignant gastric mucosa in daily clinical practice.

Keywords

References

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